10891199010 has 64 divisors (see below), whose sum is σ = 26875137024. Its totient is φ = 2822688000.

The previous prime is 10891198991. The next prime is 10891199017. The reversal of 10891199010 is 1099119801.

It is a self number, because there is not a number n which added to its sum of digits gives 10891199010.

It is not an unprimeable number, because it can be changed into a prime (10891199017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1095060 + ... + 1104960.

It is an arithmetic number, because the mean of its divisors is an integer number (419924016).

Almost surely, 2^10891199010 is an apocalyptic number.

10891199010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10891199010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13437568512).

10891199010 is an abundant number, since it is smaller than the sum of its proper divisors (15983938014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10891199010 is a wasteful number, since it uses less digits than its factorization.

10891199010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10939.

The product of its (nonzero) digits is 5832, while the sum is 39.

The spelling of 10891199010 in words is "ten billion, eight hundred ninety-one million, one hundred ninety-nine thousand, ten".